At the invitation of the State Key Laboratory of Cryosphere Science (hereinafter referred to as the Cryosphere Laboratory) of the Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Dr. Yang Daqing of the Canadian Hydrological Research Center visited the Cryosphere Laboratory from October 25th to 27th, 2018. On October 27th, he gave an report on "Arctic Hydrology, Permafrost, and Ecosystem: Linkages and Interactions". Prof. Kang Shichang, Director of the cryosphere laboratory,chaired the report.
Understanding the environmental changes and its impacts on the Arctic region has important scientific significance and can provide scientific insights for the formulation of relevant strategies in China. Dr. Yang Daqing's report summarized the research progress in the Arctic hydrology, permafrost, snow cover and ecology, and analyzedthe interaction between the three. It was pointed out that global warming, especially the Arctic warming and human activities have caused the hydrological processes and rivers and lakes in the Arctic basin to change to varying degrees. Dr. Yang Daqing also analyzed the characteristics and mechanisms of runoff changes in the Arctic.The report also gave a vivid description of the formation process of lakes in the Arctic region and the migration process of surface water and groundwater, discussed the effects of different permafrost coverage and the effect of underground ice on hydrological processes at the basin scale, and made an in-depth study of the water imbalance in the typical Canadian Arctic watershed. Anatomy. In addition, the report summarized the changes in vegetation NDVI in the Arctic and its relationship with changes in runoff in the basin. Finally, Dr. Yang Daqing pointed out that in the Arctic region, multi-source data should be fused to construct a system model, and the Arctic-related research should be expanded from the point scale to the basin scale and finally to the Arctic region.
During the visit, Prof. Kang Shichang, Director of the cryosphere laboratory, introduced to Professor Yang Daqingthe latest research progress and future research directions of the cryosphere laboratory in the Arctic and discussed future bilateral research exchanges and cooperation in the Arctic hydrology. Professor Yang Daqing also had in-depth exchanges with young researchers in the laboratory on research direction and thesis writing of cryosphere hydrology.
Dr. Yang Daqing is a researcher at the Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada and a professor at the University of Alaska. He has engaged in the research and teaching of hydrology and climate for a long time and has published more than 100 academic papers, including 70 SCI. One ofhis published papers had an influence factor of 17and a number of single quotes of 262, which was selected as an ESI highly cited paper. Dr. Yang Daqing's research work on the study of hydrological changes in the Great Rivers and the water balance in the cold regions has won him an international reputation in the field of hydrological city of the cold region.
By HE Ying
